Clayton Off Road Premium Front Long Arm Upgrade Kit | Three-Piece Crossmember | Currie Johnny Joint Frame Ends | GIIRO Axle Ends | 3"–8" Lift | 2007–2018 Jeep Wrangler JK | SKU: COR-4808122
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Before ordering, verify your vehicle details, current setup, and SKU with OFAS fitment support so your upgrade matches your build.
Shipping & Delivery
Free shipping is available within the lower 48 U.S. states. Large or heavy items may ship by freight, and delivery timing can vary by warehouse, carrier, and product availability.
Fitment, Shipping & Product Support
Verified Fitment
This kit fits the 2007 through 2018 Jeep Wrangler JK — 2-Door and 4-Door Unlimited — in all trims at 3" to 8" of front lift. Exhaust modification requirements differ by model year — confirm your year before ordering and budget for the applicable exhaust work.
| Year Range | Make | Model | Configuration | Lift Range | Exhaust Requirement |
|---|---|---|---|---|---|
| 2007–2009 | Jeep | Wrangler JK | 2-Door + 4-Door | 3"–8" | Typically none |
| 2007–2009 | Jeep | Wrangler JK Unlimited | 4-Door | 3"–8" | Typically none |
| 2010–2011 | Jeep | Wrangler JK | 2-Door + 4-Door | 3"–8" | Passenger-side catalytic converter must be moved ~1" higher; JKS-8150 may be required |
| 2010–2011 | Jeep | Wrangler JK Unlimited | 4-Door | 3"–8" | Same as above |
| 2012–2018 | Jeep | Wrangler JK | 2-Door + 4-Door | 3"–8" | Loop delete kit + spacer required (see related items); JKS-8150 may be required |
| 2012–2018 | Jeep | Wrangler JK Unlimited | 4-Door | 3"–8" | Same as above |
Before ordering — two non-negotiable confirmations:
- A front CV-style driveshaft is required for this conversion and is not included. The truck cannot be driven after installation without one. Source and have the driveshaft ready before the kit arrives.
- Identify your model year and confirm the applicable exhaust modification. 2012–2018 owners must also order the loop delete kit and spacer before installation can be completed.
Verify fitment by text: (469) 407-7538
Does NOT Fit
| Exclusion | Reason | Notes |
|---|---|---|
| Jeep Wrangler JL (2018–2026) | Different front suspension architecture — JK-specific crossmember and arm geometry | JL-specific long arm system required |
| Jeep Gladiator JT (2020–2026) | Different front suspension architecture | JT-specific system required |
| Jeep Wrangler TJ / LJ (1997–2006) | Different front suspension architecture | TJ-specific system required |
| JK trucks with less than 3" of lift | Below 3" of lift, short arm geometry can function adequately — long arm conversion below this height may not produce meaningful benefit and the crossmember geometry is designed for 3"+ | Confirm lift height is 3" or greater before ordering |
| JK trucks with more than 8" of lift | Above 8", additional geometry considerations apply — verify with Clayton before ordering at extreme lift heights | Text (469) 407-7538 |
| 2012–2018 JK owners who have not ordered the loop delete kit and spacer | The loop delete kit and spacer are required for 2012–2018 JK installations — this kit cannot be fully installed on a 2012–2018 JK without them | See related items for the required loop delete kit and spacer |
| Buyers who do not have a front CV-style driveshaft sourced | A front CV-style driveshaft is required — the truck cannot be driven after this installation without one | Source separately before ordering this kit |
Verify fitment by text: (469) 407-7538
Component Specifications
| Specification | Detail |
|---|---|
| Part number | COR-4808122 |
| Application | Front long arm upgrade kit — JK 2007–2018, 3"–8" lift |
| Crossmember | Three-piece — replaces factory front crossmember to accommodate long arm geometry |
| Upper control arms | Adjustable, long arm — reduces upper suspension angles at lift height |
| Lower control arms | Adjustable, long arm — reduces lower suspension angles at lift height |
| Frame-end joint | Currie Johnny Joint — 3-piece: steel ball, "Tough 88" urethane casing, housing; 40° of unrestricted movement; shock-absorbing and NVH-isolating |
| Axle-end joint | GIIRO dual-durometer bushing — softer outer durometer for NVH isolation; stiffer inner core for lateral load resistance; maintenance-free; self-centering |
| Lift range | 3" to 8" |
| Driveshaft requirement | Front CV-style driveshaft — required, not included |
| Exhaust — 2007–2009 | Typically no modification required |
| Exhaust — 2010–2011 | Passenger-side catalytic converter must be moved ~1" higher; JKS-8150 may be required |
| Exhaust — 2012–2018 | Loop delete kit and spacer required; JKS-8150 may be required |
| Warranty | Lifetime — control arms |
| Unit weight | 38 lb |
| Shipping dimensions | 24" × 6" × 6" |
What Is and Is NOT Included
Included:
| Component |
|---|
| Three-piece front crossmember |
| Upper adjustable long control arms (pair) with Currie Johnny Joint frame ends and GIIRO axle-end bushings |
| Lower adjustable long control arms (pair) with Currie Johnny Joint frame ends and GIIRO axle-end bushings |
| Hardware per Clayton specification |
Not Included:
| Item | Notes |
|---|---|
| Front CV-style driveshaft | Required — cannot drive after installation without one. Source separately before ordering this kit. |
| Loop delete kit and spacer (2012–2018 only) | Required for 2012–2018 JK installations. See related items — this kit cannot be fully installed on 2012–2018 JKs without it. |
| JKS-8150 | May be required for 2010–2018 JKs depending on lift height and driveshaft type — source separately if applicable. |
| Cat relocation hardware (2010–2011 only) | Passenger-side catalytic converter must be raised ~1" — hardware sourced separately for 2010–2011 JKs. |
| Professional installation labor | Long arm conversion is an advanced suspension job — shop installation required. Not included. |
Critical Compatibility
| Condition | Interaction | Action Required |
|---|---|---|
| Front CV-style driveshaft — required, not included | The long arm conversion changes the front driveshaft operating angle beyond what a standard U-joint driveshaft can accommodate. A CV-style front driveshaft is required for correct driveline operation after installation. Driving without one after this conversion risks driveshaft binding or failure. | Source and confirm a compatible front CV-style driveshaft before ordering this kit. Have it ready for simultaneous installation. |
| 2012–2018 exhaust — loop delete kit and spacer required | The 2012–2018 JK exhaust system configuration conflicts with the long arm crossmember geometry. A loop delete kit and spacer are required to clear the crossmember on these model years. This is not optional — the installation cannot be completed without them. | Order the loop delete kit and spacer from related items simultaneously with this kit. |
| 2010–2011 exhaust — catalytic converter relocation | The passenger-side catalytic converter on 2010–2011 JKs must be moved approximately 1" higher for clearance. JKS-8150 may also be required depending on lift height and driveshaft type. | Source cat relocation hardware before installation. Confirm whether JKS-8150 is required for your specific lift height and driveshaft. |
| Currie Johnny Joint vs. heim joint — joint type distinction | The Currie Johnny Joint at the frame end uses a urethane casing rather than a bare metal heim joint. This provides NVH isolation and shock absorption that a heim joint cannot — but it is not as articulation-flexible as a bare heim at extreme angles. The 40° of movement is adequate for the 3"–8" lift range this kit is designed for. | No action required — joint selection is fixed in this kit. Understand that Johnny Joints and bare heim joints are different design choices with different trade-offs. |
| GIIRO bushing — maintenance-free confirmation | The GIIRO dual-durometer bushing at the axle end is sealed and maintenance-free — no grease interval is required. Inspect periodically for visible deformation or cracking of the outer urethane. | No grease fitting needed. Inspect on regular service schedule. |
| Alignment — mandatory post-install | A long arm conversion changes caster, camber, and toe simultaneously. A full front alignment (caster, camber, toe) is mandatory before the truck returns to normal road use. | Schedule alignment immediately after installation. Do not drive at highway speed before alignment is confirmed. |
Installation Notes
Skill level: Advanced. A long arm conversion is one of the most complex front suspension modifications available for the JK platform — it replaces the crossmember, both upper and lower control arms, and requires driveshaft, exhaust, and alignment work simultaneously. A qualified suspension shop with JK long arm experience is required.
Pre-installation checklist — complete before the kit arrives:
- Front CV-style driveshaft sourced and ready
- Model year confirmed and applicable exhaust components ordered:
- 2007–2009: Typically no additional parts needed
- 2010–2011: Cat relocation hardware; confirm JKS-8150 requirement
- 2012–2018: Loop delete kit and spacer from related items; confirm JKS-8150 requirement
- Alignment appointment scheduled for immediately after installation
Installation summary:
- Remove factory front crossmember, upper and lower control arms.
- Install three-piece Clayton long arm crossmember.
- Install upper and lower adjustable long control arms — Currie Johnny Joints at frame ends, GIIRO bushings at axle ends.
- Complete applicable exhaust modifications per model year.
- Install front CV-style driveshaft.
- Torque all control arm hardware at ride height — not at full droop or compression.
- Verify driveshaft angle and U-joint/CV operating angles.
- Set full front alignment — caster, camber, toe.
Required tools (expert shop):
| Tool | Required |
|---|---|
| Vehicle lift rated for JK | Yes |
| Torque wrench | Yes |
| Full socket and wrench set | Yes |
| Crossmember and control arm removal tools | Yes |
| Exhaust modification tools (year-dependent) | Yes |
| Alignment equipment or appointment | Yes |
Common Questions
Why do I need a long arm kit at 3"–8" of lift?
At stock ride height, the factory short arm control arms operate within their designed geometry. At 3" of lift and above, the suspension angles of the short arm setup increase enough to produce a noticeably harsher ride, reduced articulation, and accelerated wear on the control arm bushings. Longer arms reduce the suspension angles at the same lift height, spreading the articulation load over a longer arc — the result is a smoother on-road ride, greater off-road wheel travel, and longer component life. The difference between short arm and long arm geometry becomes more significant as lift height increases.
What is a Currie Johnny Joint and how is it different from a heim joint?
A Currie Johnny Joint is a three-piece ball joint design with a steel ball, a "Tough 88" urethane casing around the ball, and a housing. The urethane casing provides 40° of unrestricted movement while absorbing vibration and road noise that a bare metal heim joint transmits directly to the frame. Heim joints offer greater angular articulation but transmit more NVH to the chassis and require regular inspection for wear. Clayton uses Johnny Joints at the frame end of this kit because the on-road NVH isolation they provide is significant for a daily-driven JK.
What is the GIIRO bushing at the axle end?
GIIRO stands for "Grease Independent Inner/Outer" — a dual-durometer bushing design with a softer outer layer for NVH isolation and a stiffer inner core for lateral load resistance. Unlike conventional polyurethane bushings that require grease, the GIIRO bushing is maintenance-free and self-centering. It is the axle-end counterpart to the Johnny Joint at the frame end — each end uses the joint type best suited to its loading environment.
What exhaust work does my 2012–2018 JK need?
The 2012–2018 JK exhaust routing conflicts with the long arm crossmember geometry. A loop delete kit removes the exhaust loop that interferes with the crossmember, and a spacer provides correct clearance at the new position. Both are required — ordering this kit without also ordering the loop delete kit and spacer for a 2012–2018 JK will result in an incomplete installation that cannot be driven. Order both from the related items tab simultaneously.
Does the warranty cover the crossmember too?
Clayton's confirmed lifetime warranty applies to the control arms. Crossmember warranty terms are not confirmed from available source data — confirm with Clayton Off Road or OFAS before ordering.
What is the warranty on the control arms?
Clayton Off Road provides a lifetime warranty on the control arms included in this kit. Confirm full warranty terms at claytonoffroad.com/pages/warranty-policy.
The Obsidian Take
This kit is for the JK owner who has lifted the truck 3" or more and has either outgrown the short arm geometry or wants to build the suspension correctly from the start. The Currie Johnny Joint and GIIRO bushing combination is the engineering decision that defines this kit's character — Johnny Joints at the frame end for NVH isolation and shock absorption, GIIRO bushings at the axle end for maintenance-free lateral load resistance. Both joints are serviceable without grease intervals. Both are designed for a JK that sees road miles as well as trail miles.
The driveshaft and exhaust requirements are not afterthoughts — they are the two things that must be resolved before this kit can be installed and driven. The CV-style front driveshaft is required on every model year. The exhaust situation is year-specific: 2007–2009 owners typically have no additional work; 2010–2011 owners need to raise the passenger-side cat; 2012–2018 owners need the loop delete kit and spacer. Each of these is a separate order that needs to happen simultaneously with this kit, not after.
At 38 lb and with a lifetime warranty on the control arms, this is a build-once solution for the JK long arm geometry question. The crossmember and arms are the bulk of the work. The driveshaft and exhaust are the details that determine whether the truck moves when installation is done.
Manufacturer Data Disclaimer
Product specifications and fitment data are sourced from Clayton Off Road product documentation and authorized product information. Actual product dimensions, fitment details, exhaust modification requirements, and driveshaft compatibility may vary by specific vehicle configuration, lift kit brand, and manufacturer updates. Confirm all model year-specific requirements before ordering.
Non-Returnable Notice
Suspension components are non-returnable once installed. Confirm model year (2007–2018 JK), lift height (3"–8"), and all required companion components (front CV-style driveshaft; loop delete kit and spacer for 2012–2018; cat relocation hardware for 2010–2011) before ordering. Text (469) 407-7538 with any fitment or build questions before your order is placed.